Tripping mechanism for igniters.



H. R. VAN DEVENYER.

TRIEPING MEcHANlsM Foa |GNITERS.

APPLICATION FlLED NOV. Il. 19H5.

Patented Nov. 6, l9l7.

UivrrED STATES PATENT oFFicE.

HARRY IB.. VAN DEVENTER, 0F SUMTER, SOUTH CAROLINA, ASSIGNOR TO SPLITDORF ELECTRICAL COMPANY, 0F NEWARK, NEW JERSEY, A. ICORPORAELIOIYI` OF NEW JERSEY.

TRIPPING MEcHANIsii/r Fon IGNI'rEns.

1,245,832. Original application led March 27, 1915,

To all whom z't may concern.'

Be it known that I, 'HARRY 'VAN DE- VENTER, a citizen of the United States, residing atSumter. in the county of Sumter and State of SouthCarolina, have invented certain new and useful Improvements in Tripping Meclianismfor Igniters, of which the following is a specification, reference being had to the accompanying drawing.

Theinvention relates to new and useful improvements in igniter mechanisms for internal combustion engines and more particularly to the tripping mechanism therefor. In a co-pending application, Serial No. 17,499, filed March 27, 191,5, I'have shown, described and claimed an operating mechanisin for operating the igniter and also the magneto for generating a current for igni-4 tion, together with a tripping device'for the 'operating mechanism. The present invention is a division of this co-pending appl-ication 'and relates more particularly to an operating mechanism for the igniter, regardless of the source of` the current'for said igniter.

An object of the invention is to provide an igniter operating mechanism wherein a trip lever may be utilized for actuating'the igniter and manuallv actuated means may be 4used for moving the trip lever against the force of a tension means, tending to norrnallyhold the tripl lever in a given position, so as to cock and automatically release said ltrip lever and also to provide means for holding the trip lever in a cocked position together with manually operated means for releasing the trip leverat will;

as for example in the starting of the engine.

yIn the drawings which show by way of illustration one embodiment of the invention Figure 1 is a view 4partly 'in section and partly in plan showing my improvement applied to an engine. l

Fig. 2 is a front elevation thereof. In the drawings the engine cylinder is 1ndicated at 1. This engine cylinder is shown in section in Fig. 1 of the drawings.` The igniter body isindicated at 2, said ignlter body carries the movable Contact 3 and the fixed contact 4 which constitute the usual make and break igniter mechanism. A flange 5' extends around the aperture in the cylinder, and extending from this flange and preferably integral therewith are the arms Specification of Letters Patent.

Patented N ov. 6, 191 7.

Serial No. 17,499. This application led November 11, .1916. Serial No; 130,836.

.6 and 7. Studs 8 and 9 are carried resp-ecto rollers suiltablv connected to the trip lever 14. 4This trip lever 14 is loosely mounted on the shaft 15 of the movable electrode 3. It

is understood that the shaft of the electrode forms a support for the trip lever 14 but does not move therewith. The trip lever 14 is formed with an igniter fire finger 16 and a trlp finger 18. This trip linger is adapted to be engaged by the push rod 19. The outer end-ofthepush rod issuitably connected to some moving part of the engine, so that the rod has a reciprocating movement over the pulley 2O whichcausesthe inner end 21 of the rod to. push inwardly against the trip linger 18 until the same is suddenly released inthis type of device.

The-shaft 15 of the movable contact 3 of the igniter'carries an arm 22 at the outer end which is provided with suitable adjusting means such as a screw 25 whereby the Imanner. The circuit is completed through the movable contacts 3 of the igniter and the frame of the igniter mechanism and the other terminal of the current supplying means. This current supplying means maybe a magneto operated by the mechanism which operates the igniter'or may be a battery or. anyother suitable current generating means. As the push lever 19 moves forward, `the and rides over said finger as is customary trip lever .will be oscillated, moving the arm .16 ofthe trip lever away from the arm 22 of the movable'electrode Contact. and the spring 24 will hold the contacts in engagement. lVhen `the trip lever is released then the arm 1,6 will strike the arm 22 and j matassa Athfe'i'dle *strokes of' the engine the exhaust idly above the inger -18 without engaging valve push rod 32, which has' a reciprocating motion is provided with suitable means, such asa pin 'adapted to engage the-arm 84 of a bell crank lever. rThe upperend ot the bell crank lever'is positioned under the push `rod-19sothat'when the exhaust rod is actuated, which occurs during the idle strokeoi the .piston on hit-and-miss engines, or'

when the exhaust is held open by thegovernor, the bell crank lever will be shifted so ,.as'to lift the push rod 19 above thenger 18 and this prevents the operation of the igniter mechanism as the rod 19 willreciprocate the saine., l

ll haveiialso provided I a shaft 36 uponv whichthepulley Q0 is eccentrically mounted when the armv 37 is moved to the right or the left.. `As viewed in Fig. 2 the end ofthe push rod19 is raised or lowered in its relation to the' finger 18 thereby varying the time of ignition. For the purpose of operat- 'ing thema-gneto by hand l have provided a lever 38 which is pivoted on the post 9, and Saidv lever is provided with an operating handle 39. The lever 38 is of such length as toengagethe stud .40 and raisethe same into the position indicated in dotted lines in lFig. 2, under vwhich condition the lever also assumes the position indicated in dot-.

In raising the stud 40 into the ted lines. dotted line position the trip lever 14 is swung into its maximum operating or cocked position. In order to hold the trip lever in this cocked position, an extension 42 isprovided on the trip lever and this extension is so arranged as to engage .a trigger 43 when said trip lever is in cocked position. rlhe 'trigger 43 is pivotally mounted on a post 8 and is controlled by a weight 44 which nor- A"'.nially turns the trigger in a clockwise-di- 'aection rlFheA trigger may be turned in the :ppposite direction by a suitable handle 45. .llt is obvious from the foregoing that, under normal conditions, when the lever 38 is rota'ted in a clockwise direction through approximately 270 then said trip lever lwill `loe thrown into cocked position and. automatically locked there during engagement of the-end of the extension with the trigger 4 3. With the trigger mechanismlatched in cocked position, all that is necessary, in order to start the engine, is to turn the same into thev power stroke, and then release the ytrigger-'43 by operation' of the handle 45 -whereby the ignition mechanism is actuated yunder force of the operating springs 12 and 13 so as to separate the contacts, produce a spark and ignite the charge.. As soon as the engine is started the handle 4a is placed-in substantially a horizontal/position, thereby tion with the trip lever extension 42 and thev trigger will be held in this position by the weight 44 which is moved t-o the left of the vertical, passing through the pivot of said trigger.

To stop the engine it is only necessary to place the trigger back in the position indicated i n Fig. 2, whereupon the next throw of the tri'p lever into cocked position, by the normal operation of the push rod, will cause it to become latclied in that position and stop the engine, leaving the ignition mechanlsm set in readiness for again starting the engine by releasing thetrigger. i l

It is further noted that in initially start-4' ing the engine, with the igniter partsv in normal or uncocked position,"the trigger 43 may be disabled, as previously pointed out, and the trip lever 14 thrown into its eXtreme `operative position and then released or as set forth in the appended claims.

Having thus described my invention, what l claim and dsire to secure by Letters Patent is:

1. Ignition mechanism for an internal combustion engine comprising a frame adapted to be mounted on the engine, an igniter carried by the frame so as to extend into the ignition chamber of the engine, a trip lever for actuating said igniter, tension means extending between the fram-e and trip lever tending normally to maintain the trip lever in a given position, manually actuated means carried by the frame for moving the trip lever against the force of said tension means to cockedposition and automatically releasing the same, means carried by the frame for holding the trip lever in cocked position against the force of said tension means, and manually operated means carried by the frame for releasing the trip lever.

into the ignition chamber of the engine, a

trip lever for actuating saidigniter, tension means extending between the traine and trip lever tending normally to maintain 'thetrip lever in a givenl position, means operated by the engine for moving the trip lever against lthe force of said tension means to cocked position and automatically releasing the same,vmanually actuated means carried by the frame for moving the tiip lever to cocked position and automatically releasing the same, means carried by the frame for holding the trip lever in cocked position against the force ot' the tension meaiis,1nanu ally actuated means carried by the frame for releasing the trip lever, and means carried by the trame for disabling said holding means.

3. Ignition mechanism for an .internal combustion. engine comprisingl a frame adapted to bemounted on the engine, an ignitei' carried by the frame so as to extend into the ignition chamber of the engine, a

trip lever for actuating said igniter,tension means extending between the frame and trip lever tending normally to maintain the trip lever. in a given position, means oper-l ated by'fthe engine for moving the trip lever against the force of said tension means to cockedposition and automatically releasing the,-"sanije,fnieans carried by the frame for, 'holding the trip lever inl cocked position 'against the force of the tension means, man ually 'actuated means carried by the frame for releasing the trip lever, andmea-ns carried by the framek for disabling the said holding means."

4:. Igni on mechanism for an internal combustion engine comprising ma frame adapted .to be mounted on the engine, an igniter carried by the frame sowas to extend into the ignition chamber ofl the engine, a trip lever for actuating said igniter, tensionl vmeans'extendingbetween the frame and trip lever tending normally to maintain the trip i lever iii a given position, means operated by the engine for moving the trip leverl against. the force'of said tension means to cocked.

position and automatically releasing the same, means carried by the frame for timing the releaseof the trip lever, manually' actuated means carried by the frame for moving the trip lever to cocked position and automatically releasing the same, means carried bythe frame for holding-'the trip lever in a .cocked position against the force of the ten- Ksion means, manually actuated nieansfcarriedf" the engine for moving the trip lever against i the force of said tension means to cocked pol sitioii and automatically releasing the same, l

manually Aactuated means carried Q by the frame for moving the trip lever to cocked position and automatically releasing the same, trigger mechanism pivoted on the frame for automatically catching and holding the trip lever in cocked position after' the movement 'of the trip lever to 'sa-id' position and releasing it at Will, and means for disabling'said trigger mechanism.-

6. Ignition mechanism v:tor 'an 'internal lcombustion' .engine comprising. a frame* adapted-to be mounted onthe engine, an igniter carried by the frame so -as .to extend finto the ignition chamber of the engine., a

trip lever for actuating said igiiiter, tension means extending betweenthe frame and trip lever tending normally to4 maintain the trip lever in a given positign, engine actuated means and manually actuated means carried by the frame for moving the trip lever i against the force of said tension means to cocked position and automatically releasing the same, trigger'mechanism pivoted on the frame for automatically catching and holding the trip lever in cocked position upon its movement into said position and releasing it aty will` and mean-ster disabling said trigger mechanism.

In testimonv whereof I hereunto aiiix my signature- HARRY R. `VAN DEVENTER. 

